<template>
    <div class="icons">
        <swiper :options="swiperOption" v-if="showSwiper">
            <swiper-slide v-for="(page,index) of pages" :key="index">
                <div class="icon" v-for="item of page" :key="item.id">
                    <div class="icon-img">
                        <img class="icon-img-content" :src="item.imgUrl" />
                    </div>
                    <p class="icon-desc">{{item.desc}}</p>
                </div>
            </swiper-slide>
            <div class="swiper-pagination"  slot="pagination"></div>
        </swiper>
    </div>
</template>

<script>
export default {
  name: 'HomeIcons',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOption: {
        autoplay: false,
        pagination: '.swiper-pagination',
        loop: false
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    },
    showSwiper () {
      return this.list.length
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import '~styles/varibles.styl'
  @import '~styles/mixins.styl'
  .icons >>> .swiper-container
    height :0
    padding-bottom 50%
  .icons
    margin-top .1rem
    .icon
        position relative
        overflow hidden
        float :left
        height :0
        width :25%
        padding-bottom: 25%
        .icon-img
            position absolute
            top :0
            left :0
            right :0
            bottom :.44rem
            box-sizing border-box
            padding :.1rem
            .icon-img-content
                display block
                height :100%
                margin 0 auto
        .icon-desc
            position: absolute
            left :0
            right :0
            bottom :0
            line-height :.44rem
            height :.44rem
            color :$darkTextColor
            text-align :center
            ellipsis()
</style>
